Vivacious young Criquette becomes enamored of Parisian dandy Philippe, and upon discovering that he is carrying on an affair with Madame Girard, her stepmother, she uses the information as a means of tricking him into marrying her. Philippe demurs but soon is captivated by her charm. Then Lola, a former sweetheart of the bridegroom, becomes intoxicated and goes to sleep in his bed; and Gaston, his valet, attempts to eject this woman and secretly notify the husband of the embarrassing situation. But Philippe is so convinced of his love for Criquette that he forgives Lola her indiscretion.